Verified answer

You are not allowed to add or subtract fractions unless they have the same denominator. NO exceptions!

To do your questions, we proceed as follows:

8 6/11+3 1/3

Change these to proper fractions

8 6/11=88/11 and 6/11, =88/11+6/11, =94/11

3 1/3=9/3 and 1/3, =9/3+1/3 =10/3

Our problem is now

94/11+10/3

Common denominator is 33

94/11= (94 x 3)/ (11x3), =282/33

10/3=(10 x 11)/ (3 x 11) 110/33

Now we're in business!

282/33 + 110/33=392/33. You may write this as

10 29/33 if you want.

5 4/5- 2 9/13

29/5-35/13

Common factor is 5 x 13 =65

29/5 x 13/13= 377/65

35/13 x 5/5=175/65

377/65-175/65=202/65 = 3 7/65

11 29/33

3 7/65